CDB4340A Cirrus Logic Inc, CDB4340A Datasheet - Page 8

• Manufacturer Part Number: CDB4340A
• Description: EVALUATION BOARD FOR CS4340A
• Manufacturer: Cirrus Logic Inc
• Series: Popguard®r

Specifications of CDB4340A

• Number Of Dac's: 2
• Number Of Bits: 24
• Outputs And Type: 2, Single Ended
• Sampling Rate (per Second): 192k
• Data Interface: Serial
• Dac Type: Voltage
• Voltage Supply Source: Single
• Operating Temperature: -10°C ~ 70°C
• Utilized Ic / Part: CS4340A
• Description/function: Audio D/A
• Operating Supply Voltage: 5 V
• Product: Audio Modules
• For Use With/related Products: CS4340A
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

3.5
The device includes on-chip digital de-emphasis. Figure 6 shows the de-emphasis curve for F
44.1 kHz. The frequency response of the de-emphasis curve will scale proportionally with changes in sam-
ple rate, F
8
LR C K
S C L K
LRCK
SCLK
SDIN
SDIN
LRCK
SCLK
SDIN
-10dB
Gain
0dB
dB
De-Emphasis
0
s
. Please see Table 6 for the desired de-emphasis control.
Figure 6. De-Emphasis Curve
M SB
-1 -2 -3 -4 -5
3.183 kHz
T1=50 µs
F1
23 22 21 20 19 18
15 14 13 12 11 10
Figure 3. CS4340A Format 1 - Left Justified up to 24-Bit Data
3 2 clo cks
3 2 clo cks
Le ft C ha nne l
Figure 4. CS4340A Format 2 - Right Justified, 24-Bit Data
Figure 5. CS4340A Format 3 - Right Justified, 16-Bit Data
Le ft C ha nne l
+5 +4
Left C ha nnel
10.61 kHz
+3 +2 +1
9
F2
8
7
LSB
7
T2 = 15 µs
6
6
Frequency
5
5
4
4
3
3
2
2
1
1
0
0
M SB
-1 -2 -3 -4
Table 6. De-Emphasis Control
DEM
23 22 21 20 19 18
15 14 13 12 11 10
0
1
+5 +4
R ig ht C ha nne l
R ig ht C ha n nel
R ig ht C ha nne l
DESCRIPTION
+3 +2 +1
44.1 kHz
Disabled
9
8
LSB
7
7
6
6
5
5
CS4340A
4
4
3
3
2
s
2
DS590F2
equal to
1
1
0
0